<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      background-color: #1e1f25;
      height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    span {
      color: #faebd7;
      font-size: 100px;
      animation: shadowing 1s ease-in-out infinite alternate;
    }

    @keyframes shadowing {
      to {
        color: #ff0266;
        text-shadow: 20px 0 70px #ff0266;
      }
    }

    span:nth-child(n+2) {
      animation-delay: 0.2s;
    }

    span:nth-child(n+3) {
      animation-delay: 0.4s;
    }

    span:nth-child(n+4) {
      animation-delay: 0.6s;
    }

    span:nth-child(n+5) {
      animation-delay: 0.8s;
    }

    /* span:nth-child(n+6) {
      animation-delay: 1s;
    } */
  </style>
</head>

<body>
  <div class="text-area">
    <span>F</span>
    <span>O</span>
    <span>L</span>
    <span>L</span>
    <span>O</span>
    <span>W</span>
    <span>M</span>
    <span>E</span>
  </div>
</body>

</html>